If you've been following smartphone displays in the last 15 months or so, then you must know by now what a Pentile Matrix display is. In a nutshell Pentile displays are grainer and suffer from color fringing. Pentile isn't really noticeable under 4.0" but over that it tends to rear its ugly head on more than just one occasion which is why a lot of people will be delighted to know the newly announced Lumia 900 from Nokia will in fact NOT come with a Pentile Matrix display and will use the regular RGB arrangement. Rest assured Mango will look its best on a Lumia 900.